String holding and cutting adjustment for rivet-setting machines



H. PARKINSON. ST-RING HOLDING AND CUTTING ADJUSTMENT FOR RIVET SETTINGMACHINES.

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APPLICATION FILED MAY 25, 1921.

4 Patented July 18, 1922.

2 SHEETS-$HEET I.

H. PARKINSON- STRING HOLDING AND CUTTING ADJUSTMENT FOR RIVET SETTINGMACHINES.

APPLICATION FILED MAY 25. I921.-

Patented July 18, 1922.

2 SHEEI SSHEET 2.

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HAROLD IPARKINSON, 0F WILMINGTON. DELAWARE.

Application filed May 25, 1921.

Be it known that I, HAROLD PAnKiNsoN, a citizen of the United Statesotfunc'rica, and residentott lvilmington, in the county of New Castle,in the State of Delaware, have invented certain new and usefulImprovements in String Holding and Cutting- Ad justments forRivet-Setting Macliines, oi which the following is a true and exactdescription, reference being had to the accompanying drawings, whichtorm a part thereof.

My invention relates to'rivet setting in achines and has forits objectto proiide such machines with an attachmentwhercby successive lengths ofstring drawn from a spool or other reservoir can be guided and held inproper alignment with a rivet holder so that the string will lie beneaththe head of the rivet and be clamped between the rivet head and theboard or other object into which the rivet is set.

Another objectof my invention is to pro vide a string cutter in properalignmentwith the string guides and by means of which the string afterbeing clamped against the board by the rivet can be readily cut of?after the next successive length of string has been brought into properalignment with the rivet setting mechanism.

My invention has been especially devised as a means for securing to thecards or boards on which piece goods are to be wound strings by means ofwhich cards in the nature of price tags can be attached.

The nature of my improvements will be best understood as described in.connection with the drawings in which I have illustrated them inconnection with the outline of a rivet setting machine of familiar typeand in which Figure 1 is a side elevation of the machine provided withmy improvements.

Figure 2 a. front view thereof.

Figure 3 a plan view with the upper part of the mechanism cut away.

Figure 4 a detail showing the way in which the string'is secured to theboard by the rivet, and

Figure 5 is a perspective view. showing one end of the board with thestring and tag attached thereto.

A indicates the main head of the rivet set ting machine supported on thestandard B having, as shown, an arm A to which is secured a head A inwhich the rivet setting Specification of Letters Patent.

Patented July 18, 1922. Serial No. 472,580.

plunger moves and to which the mechanism, not shown, for actuating theplunger is con nected. A indicates the lower forwardly extending arm ofthe head A. which supports the work holding head A"; E indicating theadjustable handle usually employed in connection with this head. C, Fig.2, indicates theguideway through which the rivets are fedto thepositioning holder. C indicates the rivet setting plunger. D indicatesan arm extending down from the head A and supporting the guide D and thepositioning holder for the rivets indicated at D The general characterof the machine is similar to that described in the patent to Havener959,738 of llllay 81, 1910, except that I have indicated only asingl'einstead of a multiple rivet setting mechanism but it will beunderstood that my invention is applicable to any type ot rivet settingmachine and is entirely independent of the particular rivet settingmechanism employed. F F, indicate bracket arms secured to the body ofthe rivet setting machine and supporting a. Hat work holding table G onthe upper face of which are lo cated card positioning devices made up,as shown, of angle irons H, lIQsecure'd to the table G by boltsext-ending through slots G, G and G G said slots enabling thepositioning angle irons to be adjusted for difier ent sizes of cards. Iis a bracket arm secured to the under side of the table G and supportinga spindle I on which is placed a spool of string indicated in dottedlines at T. G is a perforation formed through the table G through whichthe string passes from the spool T. J is a string guide secured to theupper face of the table G and formed, as shown. with a perforation Jthrough which the string passes and. which positions the string atproper height with respect tothe rivet holder. In practice it isgenerally convenient to give the string a turn around the guide post Jto insure proper tension, although, of course. any convenient tensi ondevice may he employed. On the opposite side of the table from thestring guide J and in proper position to hold the string so that it willlie beneath the rivet head I locate another string guide which, asshown, and as preferably constructed, consists of a plate K attached tothe top of the table G and having a rearwardly flaring arm K and anotherplate L having an outwardly flared arm L located in grippingrelationship with the plate K and preferably held against it by a springsuch a spring being indicated at M and M indicating a thumb nut foradjusting the tension of the spring.

On the outside of the thread guide and gripper KL I locate a cuttingdevice by which the string can be cut olt after it is attached to thecard or board and this cutting device is best made up of an ordinarypair of scissors, as shown. it bracket N is secured to the under sideotthe table (i and to this bracket the arm P oil a stationary scissorblade P is attached. P indicates the pivot or the move able scissorblade P which has an actuating arm I to the end of which is attached anactuating rod Q, having for convenience of operation an outwardly bentportion Q which extends out beneath and slightly in front oi the table Gas best shown in Fig. 1, R, R, are springs attached tothe rod Q, asshown and acting to normally hold the scissors in open positionindicated in Fig. l, U, 0, are brackets secured to the under side of thetable and formed with slots U through which pass the rod Q. These slotsshould be made of a circular arc concentric with a line passing throughthe pivot it of the scissors. b indicates the head and hi the shank oithe rivet. U indicates the string passing from the spool T and Vindicates the card or board into which the rivet is sunk and to whichthe string is to be attached.

In operation the string ii is led from the spool through the perforationG" and through the perforation J of the string guide J. It is thenpassed across beneath the rivet holding device D into the bite of thestring guide KL. A card V is then placed on the table G- properlyaligned by the guides H, H, and the machine operated to force the rivetinto the card or board ii the rivet head carrying down the string andgripping it against the top of the board as indicated in .1 ig. 4%. Theoperator then moves the board with the string attached to it to theleft, drawing the string from the spool through the guide J and throughthe guide KL and between the blades or the scissors and after the boardhas been moved sufliciently to the left to provide for the length ofstring de sired the operator presses down on the portion Q, of thescissors actuating rod Q, causing the scissors to close and sever thestring and obviously this operation leaves a new length oi": stringextending between the string guides and in proper relationship to thenext rivet to be set into a board.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent, is: V

1. In combination with a rivet setting ma chine a string guide locatedon one side of the rivet holder, to receive and position the string asit is drawn from a spool and an elastically gripping string guide andholder having outwardly flared guide arms located on the other side oithe rivet holder,

2. in combination with a rivet setting machine a card holding table, astring guide to receive and'position the string as it is drawn from aspool located on one side of; the rivet holding device, an elasticallygripping string guide having tlaredguide arms located on the other sideof the rivet holder, scissors for cutting the string located inalignment with the string guides, a scissor actuating rod extending romthe movable arm 01. the scissors below the card holding table, bracketshaving guide slots formed in them through which sa id rod extends andsprings attached to said rod and acting to normally hold the scissorsopen.

HAROLD PARKINSUN

